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The Great Divide: the Cassini Division in Saturn's rings is almost as wide as Mercury https://t.co/vQagjetfjU http://pic.twitter.com/iJOVlJgzik

— CassiniSaturn (@CassiniSaturn) April 11, 2016

via Twitter https://twitter.com/CassiniSaturn

April 11, 2016 at 08:31PM